Downgrading qtmir to https://launchpad.net/ubuntu/+source/qtmir/0.4.4+15.04.20141124-0ubuntu1 makes e.g eog run, that suggest that the issue is with that component and not with mir or gtk
Downgrading qtmir to https:/ /launchpad. net/ubuntu/ +source/ qtmir/0. 4.4+15. 04.20141124- 0ubuntu1 makes e.g eog run, that suggest that the issue is with that component and not with mir or gtk